## 4D.1

Chloe Alviz 1E
Posts: 102
Joined: Sat Aug 17, 2019 12:17 am

### 4D.1

Carbon disulfide can be prepared from coke (an impure form of carbon) and elemental sulfur:
4C(s) + S8(s) --> 4 CS2(l) ΔH°= +358.8 kJ

(b) Calculate the heat absorbed in the reaction of 197 g of carbon with an excess of sulfur. (c) If the heat absorbed in the reaction was 415 kJ, how much CS2 was produced?

Can someone walk me through parts b + c?

ShastaB4C
Posts: 100
Joined: Thu Sep 26, 2019 12:18 am

### Re: 4D.1

you can use the enthalpy as a conversion factor. I hope this helps.
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Sartaj Bal 1J
Posts: 101
Joined: Thu Jul 25, 2019 12:17 am

### Re: 4D.1

Like the above post mentions, a good way to think about is in stoichiometric terms. Just make sure each individual conversion makes sense and relates to the amount of moles in the chemical equation provided.

Return to “Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)”

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